Help us map London's Silicon Roundabout

Update, 13/11/09: Thanks for all your suggestions below. We’ve weighed and debated all those received by the start of this week. In whittling down our final list, our main criteria were to favour companies most in the spirit of the original 15 Silicon Roundabout firms; and also to favour local businesses rather than local branches of international businesses. But boy, what a vast amount of talent and creativity we found in one small neighbourhood – very exciting. You can see the result in a pull-out map in the February issue of Wired, out on January 7 next year.

We have an ambitious project we’re working on for Wired magazine for which we’d welcome your input. We’re trying to map out the creative/tech quarter that’s sprung up around Old Street and Shoreditch in north-east London – and we want to know which businesses we’ve missed. So let’s crowdsource this together. The final product will be a beautiful, shiny pull-out map in a future edition of the magazine.

First, a bit of history.

The term "Silicon Roundabout" is attributed to Dopplr’s Matt Biddulph, who defined it last year as "the ever-growing community of fun startups in London's Old Street area". He created a Google Map in July 2008 charting the relevant firms in the area.

But who else should be on the map today? We asked researcher Georgina Voss, who is in the process of completing a thorough study of the area, to suggest other businesses that currently fit the remit of "tech-related firms in the EC2A area". Voss – who worked from the offices of BERG/S&W (see here) - came up with a further 40 or so. As she says, some are obvious fits, eg Zolmo, Habit Industries, TweetDeck, whereas others may be open to debate.

Here’s her provisional list; so tell us (in the comments below) who isn’t here who should be, and also who is here that you feel isn’t quite right for this list. Already a few gaps come to mind (Seeper?) – but you’ll know more.